Molybdenum-tungsten alloy and preparation method thereof

A molybdenum-tungsten alloy and raw material technology, applied in the field of molybdenum-tungsten alloy and its preparation, can solve the problems of insufficient strength of molybdenum-tungsten alloy and achieve excellent strength effect

Inactive Publication Date: 2017-02-22
林海英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the molybdenum-tungsten alloys cu

Method used

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  • Molybdenum-tungsten alloy and preparation method thereof

Examples

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Embodiment 1

[0015] A molybdenum-tungsten alloy, comprising the following raw materials in parts by weight: 102 parts of molybdenum, 80 parts of tungsten, 2 parts of magnesium, 1 part of zinc, 4 parts of hafnium nitride, 2 parts of yttrium oxide, 1 part of thulium, 1 part of terbium, 1 part of erbium, 4 parts of polycrystalline mullite fiber, 2 parts of titanium oxide, 2 parts of tricobalt tetroxide and 5 parts of dichromium trioxide.

[0016] A preparation method of molybdenum-tungsten alloy comprises the following steps:

[0017] 1) Pour 102 parts of molybdenum, 80 parts of tungsten, 2 parts of magnesium, 1 part of zinc, 4 parts of hafnium nitride, 2 parts of yttrium oxide, 1 part of thulium, 1 part of terbium and 1 part of erbium into the metal melting furnace, and then Heating to 600°C, stirring after all the raw materials are completely melted, to obtain liquid metal, set aside;

[0018] 2) Pour 4 parts of polycrystalline mullite fiber, 2 parts of titanium oxide, 2 parts of tricobalt...

Embodiment 2

[0021] A molybdenum-tungsten alloy, comprising the following raw materials in parts by weight: 100 parts of molybdenum, 82 parts of tungsten, 4 parts of magnesium, 3 parts of zinc, 6 parts of hafnium nitride, 4 parts of yttrium oxide, 3 parts of thulium, 3 parts of terbium, 3 parts of erbium, 6 parts of polycrystalline mullite fiber, 4 parts of titanium oxide, 4 parts of tricobalt tetroxide and 7 parts of dichromium trioxide.

[0022] A preparation method of molybdenum-tungsten alloy, comprising the following steps:

[0023] 1) Pour 100 parts of molybdenum, 82 parts of tungsten, 4 parts of magnesium, 3 parts of zinc, 6 parts of hafnium nitride, 4 parts of yttrium oxide, 3 parts of thulium, 3 parts of terbium and 3 parts of erbium into the metal melting furnace, and then Heating to 600°C, stirring after all the raw materials are completely melted, to obtain liquid metal, set aside;

[0024] 2) Pour 6 parts of polycrystalline mullite fiber, 4 parts of titanium oxide, 4 parts of...

Embodiment 3

[0027] A molybdenum-tungsten alloy, comprising the following raw materials in parts by weight: molybdenum 101, tungsten 81, magnesium 3 parts, zinc 2 parts, hafnium nitride 5 parts, yttrium oxide 3 parts, thulium 2 parts, terbium 2 parts, erbium 2 parts, polycrystalline mullite fiber 5 parts, titanium oxide 3 parts, tricobalt tetroxide 3 parts and dichromium trioxide 6 parts.

[0028] A preparation method of molybdenum-tungsten alloy, comprising the following steps:

[0029] 1) Pour 101 parts of molybdenum, 81 parts of tungsten, 3 parts of magnesium, 2 parts of zinc, 5 parts of hafnium nitride, 3 parts of yttrium oxide, 2 parts of thulium, 2 parts of terbium and 2 parts of erbium into the metal melting furnace, and then Heating to 600°C, stirring after all the raw materials are completely melted, to obtain liquid metal, set aside;

[0030] 2) Pour 5 parts of polycrystalline mullite fiber, 3 parts of titanium oxide, 3 parts of cobalt tetroxide and 6 parts of chromium trioxide ...

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Abstract

The invention discloses molybdenum-tungsten alloy which comprises the following raw materials in parts by weight: 100-102 parts of molybdenum, 80-82 parts of tungsten, 2-4 parts of magnesium, 1-3 parts of zinc, 4-6 parts of hafnium nitride, 2-4 parts of yttrium oxide, 1-3 parts of thulium, 1-3 parts of terbium, 1-3 parts of erbium, 4-6 parts of polycrystalline mullite fibers, 2-4 parts of titanium oxide, 2-4 parts of tricobalt tetraoxide and 5-7 parts of chromium sesquioxide. The molybdenum-tungsten alloy is high in strength.

Description

technical field [0001] The invention relates to a molybdenum-tungsten alloy and a preparation method thereof. Background technique [0002] Molybdenum-tungsten alloys can be used at higher temperatures than molybdenum or molybdenum alloys. For example, when molybdenum-tungsten alloy is used as electrode, orifice and thimble parts in the wave furnace for the production of high melting point refractory ceramic fibers, its service life is much longer than that of pure metal molybdenum products. Mo-30W has higher resistance to zinc liquid corrosion than pure metal molybdenum, and is mostly used in certain corrosion-resistant parts of zinc liquid temperature measuring tubes, zinc liquid pump rotors and zinc smelting furnaces. Molybdenum-tungsten alloy can also be used for gas rudders and guard plates of solid rocket motors due to its high melting point, good ablation resistance and flame erosion resistance of solid particles. The nominal composition of commonly used molybdenum-...

Claims

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Application Information

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IPC IPC(8): C22C49/10C22C49/02C22C47/08C22C49/14C22C101/06
CPCC22C49/10C22C47/08C22C49/14
Inventor 林海英
Owner 林海英
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